Mahmoud S.

Embedded Systems Engineer | IoT | PCB Design | Firmware Development | Product Prototyping Embedded Systems Engineer with over 10 years of hands-on experience developing IoT products, industrial automation systems, and custom embedded electronics from concept to working prototypes. I help startups and companies transform ideas into reliable products by combining hardware design, embedded firmware development, and system integration with a strong focus on manufacturability and real-world deployment. Hardware Design Analog & Digital Circuit Design Schematic Capture & PCB Layout ESP32, STM32, AVR, PIC, ARM Cortex-M Power Management & Battery Systems Sensor Integration Industrial Interfaces RF & Wireless Integration Design for Manufacturing (DFM) Tools: Altium Designer KiCad EasyEDA Embedded Firmware Embedded C / C++ ESP-IDF Arduino Framework STM32CubeIDE FreeRTOS Experience with: Wi-Fi Bluetooth Low Energy (BLE) MQTT TCP/IP HTTP/HTTPS OTA Updates UART SPI I2C CAN RS485 Modbus I build modular firmware architectures that simplify maintenance and future product expansion. IoT & Product Development IoT Device Development Smart Home Systems Industrial Automation Remote Monitoring Data Logging Cloud Connectivity Sensor Networks Prototype Development Product Validation What I Can Help You Build Custom IoT Devices Industrial Controllers Smart Sensors Data Acquisition Systems Embedded Monitoring Systems Robotics Electronics Wireless Embedded Products Proof of Concept (PoC) Production-Ready Prototypes Recent Project Experience Commercial IoT Controller with BLE Wi-Fi Provisioning Central HVAC Embedded Controller Industrial Monitoring & Automation Systems ESP32 & STM32 Based Products RFID & Wireless Communication Systems Power Monitoring Solutions Embedded Sensor Platforms Custom PCB & Firmware Development My Engineering Approach I don't just write firmware or design PCBs. I help define the right architecture from the beginning to reduce redesign, simplify manufacturing, and build products that are reliable, maintainable, and ready for future expansion. Whether you're starting from an idea or improving an existing design, my goal is to deliver practical engineering solutions, not just code.